Sheet-metal roofing.



E. R. PROBERT.

SHEET METAL ROOFING.

APPLICATION FILED FEBJ, 1913.

1,1 10,272, Patented Sept. 191 1.

TJNTTE STATES PATENT @FFIGE.

EDWIN R. PROBERT, F COVINGTd'N, KENTUGKT'I, ASSIGNOR- '20 THE MOIElSCI-IL- EDWARDS CORRUGATING COMPANY, OF COVINGTON, KENTUCKY, A CORPORA- TION OF KENTUCKY.

SHEET-METAL ROOFING.

ll,lll,272.

Specification of Letters Patent.

Patented Sept. 8, 1914.

' Application filed February 7, 1913. Serial No. 746,767.

- ment in Sheet-Metal Roofing, of which the following is a specification.

This invention relates to that class of sheet-metal roofingv in which the sheets or plates are formed with inverted \l-shape crimps along their longitudinal edges and it has for its object the formation and interlocking of ahorizontal seam that is elevated considerably above the plane of the sheathing on which the roofing is laid and just below the apex of the crimp.

A further object of the invention is to provide peculiar bends in the metal along said inverted V crimped edges whereby interlocking edges of contiguous sheets are provided with one or more vent-passages for the proper drying and drainage of any moisture or seepings that may possibly collect in the joints.

The details of the invention will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying sheet of drawings, Figure 1 is a fragmentary perspective view showing one end of interlocked contiguous sheets, such end being in front elevation and thence projected into isometric perspective, the joint made by the two contiguous sheets being provided with an elevated scam in one of'the crimps and an adjacent vent-passage beneath said seam; Fig. 2, a diagraphic end view of a joint composed of interlocking crimps, one of which crimps has a horizontal elevated seam and a vent-passage and the other ofwhich crimps remains intact but has beneath one leg thereof a vent-passage produced by a right-angled bend in the outer or nailing leg of the. first-named crimp; Fig. 3, a diagraphic end view similar to Fig. 2 but showing one of the crimps with an elevated seam and a vent-passage therein and the adjacent interlocking crimp, preserved intact but having beneath it a vent-passage produced by extending the first-named crimp in a curved line and then into a slanting line that ends in the customary horizontal nailing foot or flange; and Fig. A, a diagraphic end view similar to Fig. 3, but showing a right-angled bend in the metal beyond the curved extension referred to in connection with Fig. 3 and thus providing a second vent-passage in the right-hand crimp, whereby both crimps in the oint are perfectly ventilated.

1 indicates a roofing sheet or plate and 2 another contiguous roofing sheet or plate, both of which are to be joined together or interlocked over a suitable sheathing in due course of forming a roof. Both of these.

sheets or plates are shown fragmentary, it

being the purpose herein to bring more clearly to view the peculiar formation of joint for uniting or interlocking the longitudinal edges of contiguous sheets. Each sheet is formed along its opposite longitu dinal edges with parallel inverted V crimps. The left-hand longitudinal edge of each sheet remains constant in all the formsof joints shown herein and covered hereby, such left-hand edge being composed of an inverted Vcrimp of two integral members or legs 3 and 4-, the latter leg 4; extending into an inclined or slanting short leg 5 in the same slanting plane as that of leg 3 and thence extending into a short horizontal flange 6, each view of the drawings showing these bends or formations in the left-hand edge of sheet 2, which would be the same of sheet 1 if carried out in all the views. The right-hand longitudinal edge of each sheet, however, is constant in the formation and slant of the leg '1' of the inverted V crimp, but the outer leg of that V crimp is subject to various bends or formations that I shall now describe. A short slanting bend or formation 8 is made in the metal from the upper edge or apex of the leg 7 and in the same plane as that of the short leg 5 and the leg 3 along the left-hand edge of the contiguous sheet. This short slanting leg 8 has at its lower edge an inwardly-disposed horizontal formation 9 that forms part of the lock-seam when the horizontal short flange 6 al ng the extreme outer edge of the contiguous sheet is engaged thereunder. The several bends or formations 8 and 9 also remain constant in each form of crimp shown in the drawings and the lock-seam is the same in each of said views. The angles in the metal formed by the members 5, 6 and members 8, 9 are brought into alinement so as to form practically a complete inverted V crini adjacent to that formed by the inverted crimp 3, 4. The members 6, 9 form a horizontal lapped lock-seam that is elevated at a considerable distance above the sheathing and, also, above the angles formed by the members 4, 5 and the members 1, 7, l

the slant thereof bringing its outer edge under the angle formed by the members 4,

5 of the sheet 2 and thence extending into an inverted V crimp formed of members or legs 11 and 12 that fit or seat in contact with the underside of the inverted V crimp formed by the members or legs 4 and 3, respectively, of the sheet 2, and thence extend into a flat or horizontalfoot or flange 13 to accommodate the fastening-nails 14, such. flange 13 and nails 14 lying concealed directly beneath the body portion of sheet 2 adjacent to the inclined member 3. The structure just described refers especially to Fig. 1, a single vent passage or chamber 15 being supplied in the joint itself for the drainage or ventilation of any moisture or seepings that might be present within the roofing itself at the interlocked portions thereof.

In Figs. 2, 3 and 4, the member 10 is made to curve downwardly instead of to slant straight and is constant in each of these three views. In said Fig. 2 the inclined member 11 is the same as that in Fig. 1 but the member 12 is bent to a perpendicular position that brings the foot or flange 13 under the inclined member 3 and away from the horizontal body portion of the sheet 2, whereby another vent passage 16 is provided in connection with the vent-passage 15 beneath the adjoining crimps of the interlocked portions or edges of contiguous sheets. The vent-passage 16 is of greater area than that of 15 and of consequent greater venting capacity, nails 14 being used in the-foot or flange 13 for fastening the roof to the sheathing as in Fig. 1.

In Fig. 3 I have shown the member, 11 as being curved away from the inner face of the member 4 to form a vent and drain passage 17 beneath said member 4, and the members 12 and 13, together with the nails 14 are the same as those seen in Fig. 1.

In Fig. 4 the structure is made so that the vent and drain'passages 15 and 17 are the same as those in Fig. 3, and an additional vent-passage 16 is formed integral with that of 17 and similar to the vent-passage "designated by the same numeral 16 in Fig. 2. The structure shown inFig. 4 thus provides for three special vent-passages 15, 16 and 17 thatought to prove ample for most any condition that might arise in the use of sheet-metal roofing having V-crimped j oints.

In Fig. 2 I have shown how the second sheet or plate 2 is readily interlocked with the contiguous first-laid sheet or plate 1, the said plate 2 being indicated by dotted-lines in a tilted position with the edge of its hori: zontal flange 6 about to enter beneath the member 9. f

In the use of the elevated lock-seam shown herein it is clear to see that the falling rain or water readily drains to both sides of each of the V-crimps or elevated ridges forming the several joints of the roofing and no water isdetained long enough to have any possible chance of entering the lock-seams. There is no lock-seams at the base of either crimp or ridge in the several joints of the roofing such as there is in most of the lock-seam roofs in general use.

I claim 1. A sheet-metal roofing comprising metal plates each having along one longitudinal edge an inverted V crimp that upwardly and outwardly extends into a short slanting member and thence into a short horizontal member or flange materially elevated above the level of the body of the sheet and slightly below the level of the apex of the said crimp and along its other longitudinal edge with an outwardly and upwardly slanting extension or member that downwardly extends into a short inclined member, thence into a short horizontal inwardly-disposed member that coincides with said short horizontal member or flange along the opposite edge of the sheet, thence downwardly extends in a slanting or curved line of a lesser pitch than that of the said short slanting extension along the opposite edge of the sheet, thence extending into an inverted V crimp to underlie the inverted V crimp of the opposite edge of the sheet and thence into a horizontal foot or flange and adapted to receive the fastening-nails, the said firstdescribed formation along one edge of the sheet being adapted to be engaged with the second-described structure along the oppositeedge of a contiguous sheet that is to be interlocked therewith, an elevated lap ing closure or seam being provided in the joint where the short horizontal extension or elevated'flange lies beneath and contacts with the short, horizontal inwardly-disposed extension, and a vent passage or chamber being provided beneath the lock-seam formed by said short elevated horizontal contactin or lapped extensions. I

2. A sheet-metal roofing comprising contiguous sheets or plates having in their overlapping completed joints a pair of adjacent vent-passages provided in the joint Within parallel inverted-V crimps, a horizontallythe other or adjacent capping inverted-V lapped closure or seam in one of the said crimp.

crimps adjacent the apex thereof, a vent- I 3 EDWIN B. PROBERT. 5 passage made in the said one of the crimps Witnesses: I

beneath said horizontally-lapped closure or JOHN ELIAS JONES,

seam, and a pair of adjoining, independent LORETTA LUCK. 

